Siemens Aktiengesellschaft

Inselspital-stiftung

Siemens Healthcare Gmbh

Ooo Siemens

Timothy Hughes

Oliver Heid

Jennifer Sirtl

Arnd Baurichter

Ian Wilkinson

Tallal Charles Mamisch

Ghenadie Bulat

Jonathan May

Harry Hedler

Martin Spahn

Stefan Wirth

Vladimir Jellus

Paul Beasley

Günter Schmid

Dan Taroata

Bernd Kuehn

Michael Szimtenings

Alexander Smirnov

Stepan Polikhov

Jochen Friedl

Michael Kleemann

Ulrich Stimming

Jürgen Heller

Irina Astafieva

An electrolysis apparatus for producing ammonia, the apparatus comprising: a cathode; an anode; an electrolyte; a current source; a supply for nitrogen; and a supply for an acid, wherein the acid comprises at least one acid selected from the group consisting of: HCl, HBr, and HI.

Electrochemical method of ammonia generation

An electrochemical cell has a first volume exposed to respective surfaces of an anode and a cathode, the electrochemical cell also being provided with a steam inlet to allow steam into the first volume.

Electrochemical cell and process

An examination system including a magnetic resonance scanner having a solenoid for generating a magnetic field, the solenoid surrounding an examination chamber is provided. In addition, a first X-ray source and a first X-ray detector are provided in the examination chamber.

Hybrid examination system having an MR scanner, an X ray source and an X ray detector

A method for the combustion of ammonia, wherein a first combustion chamber receives ammonia and hydrogen in controlled proportions, and an oxygen-containing gas. Combustion of the ammonia and hydrogen produces NHions among other combustion products. A second combustion chamber receives the combustion products from the first combustion chamber and receives further ammonia and further hydrogen in controlled proportions, wherein combustion produces nitrogen oxides among other combustion products. A third combustion chamber receives the nitrogen oxides along with further ammonia and further hydrogen in further controlled proportions along with further oxygen-containing gas, such that the nitrogen oxides are combusted into nitrogen and water.

Method and equipment for combustion of ammonia

In a method and system for the combustion of ammonia, wherein a first combustion chamber receives ammonia and hydrogen in controlled proportions, and an oxygen-containing gas such as air. Combustion of the ammonia and hydrogen produces nitrogen oxides among other combustion products. A second combustion chamber receives the nitrogen oxides along with further ammonia and hydrogen in further controlled proportions along with further oxygen-containing gas such as air. The nitrogen oxides are combusted into nitrogen and water.

A gas turbine system has a source of ammonia and a source of an oxygen-containing gas, a first combustion chamber connected to receive ammonia, a hydrogen-rich gas stream and oxygen-containing gas, a turbine connected to receive an exhaust gas stream from the first combustion chamber; and a second combustion chamber connected to receive an exhaust gas from the turbine, ammonia and a hydrogen-rich gas stream.

Gas turbine system

A reduction-oxidation flow battery wherein the catholyte and/or the anolyte are selected from among respective defined groups of polyoxometalate compounds.

Reduction-oxidation flow battery

An ammonia synthesis apparatus has a piston arranged to reciprocate within a cylinder, a piston rod arranged to drive the piston in a reciprocal motion within the cylinder, an inlet valve linking a supply of nitrogen and hydrogen to the interior of the cylinder; an outlet valve allowing exhaust of ammonia from the cylinder, and a drive mechanism providing drive to the piston rod.

Synthesis of ammonia

A system and method for supplying an energy grid with energy from an intermittent renewable energy source having a production unit for producing Hydrogen and Nitrogen, a mixing unit configured to receive and mix the Hydrogen and the Nitrogen produced by the production unit, an Ammonia source for receiving and processing the Hydrogen-Nitrogen-mixture, an Ammonia power generator for generating energy for the energy grid, a heat distribution system with one or more heat exchangers, and an Ammonia cracker, which is fluidly connected to the Ammonia storage vessel and to the Ammonia power generator, and which is configured and arranged to receive Ammonia from the Ammonia storage vessel, to effect a partial cracking of the received Ammonia to form an Ammonia-Hydrogen-mixture and to direct the Ammonia-Hydrogen-mixture to the Ammonia power generator for combustion.

System and method for supplying an energy grid with energy from an intermittent renewable energy source

An electrochemical cell has four volumes. A porous anode is provided between a first volume and a second volume. A ground electrode is provided between the second volume () and the third volume. A porous cathode is provided between the third volume and the fourth volume.

Electrochemical cell

A system and method for load balancing of intermittent renewable energy for an electricity grid includes a production unit for producing Hydrogen and Nitrogen, a mixing unit to receive and mix the Hydrogen and the Nitrogen, an Ammonia source for receiving and processing the Hydrogen-Nitrogen mixture, an Ammonia power generator for generating energy for the energy grid, a Hydrogen injection system for extracting a Hydrogen portion from a stage of the system and for adding extracted Hydrogen to the gas stream to be provided to the Ammonia power generator, and a Hydrogen control system for controlling a flow rate of Hydrogen from the Hydrogen injection system to the gas stream to be provided to the Ammonia power generator, the flow rate determined in accordance with a data set which contains information about actual working conditions of the Ammonia power generator and which is received by the Hydrogen control system.

System and method for load balancing of intermittent renewable energy for an electricity grid

A spark gap including a capacitive energy store is provided. The spark gap is fed via a multiplicity of capacitors arranged in a form of a ring, wherein the capacitors are electrically connected to the anode and the cathode via ring-shaped and conical or funnel-shaped conductors. As a result, sudden changes in impedance can be avoided. At the same time, it is possible to realize as large a cross-sectional area of the conductor as possible within a very small space. Therefore, the spark gap has a switching response with a high rate of rise of the voltage pulse as soon as the spark gaps flash over. This results in an easily predictable switching response of the spark gap. The spark gap can be used, for example, to generate pulses of monochromatic X-ray radiation.

Spark gap comprising a capacitive energy store

An x-ray source in which monochromatic x-rays can be produced is provided. A method for producing X-rays and to the use of the x-ray source for x-raying bodies is also provided. A metallic film is arranged in a housing as a target which is bombarded with the electron beam. As a result, the metallic film is excited for emitting monochromatic x-rays, the relatively thin-walled target being modified such that the intended use for producing monochromatic x-rays is no longer possible. Therefore, advantageously, the production device can be pivoted for producing the electron beam as well as being able to wind the target on rollers.

X-ray source and the use thereof and method for producing X-rays

A method for producing a reaction product containingTC may include providingMo-metal targets to be irradiated, irradiating theMo-metal target with a proton stream having an energy for the induction of aMo(p, 2n)TC core reaction, heating theMo-metal target to over 300&#xb0; C., recovering incurredTc in a sublimation-extraction process with the aid of oxygen gas which is conducted over theMo-metal target formingTc-Technetium oxide. Further, a device for producing the reaction product containingTc may include aMo metal target, an acceleration unit for providing a proton stream, which can be directed to theMo-Metal target, such that aMo(p, 2n)TC core reaction is induced upon irradiation of theMo-metal target by the proton stream, a gas supply line for conducting oxygen gas onto the irradiatedMo-metal target to formTC-Technetium oxide, and a gas discharge line to discharge the sublimatedTC-Technetium oxide.

[object Object]

An RF power combiner functioning as a higher-order harmonics filter comprises: at least one pair of coaxially arranged disc-shaped metal conductors, at least one of the conductors having a central axial opening to accommodate a waveguide is provided. Facing surfaces of the disk-shaped metal conductors are shaped symmetrically with respect to the plane of symmetry of the disk-shaped metal conductors to form a plurality of consecutive, radially communicating concentric cavities having isosceles trapezoids with different bases in section. The smaller base of each trapezoid disposed closer to the central axis. The number of the concentric cavities is (2 k+1), where K is the number of signal harmonics being filtered.

Growing community of inventors

Erlangen, Germany

Timothy Hughes